Low ABV

Discussion in 'General Brewing Discussions' started by Frankenbrewer, Oct 12, 2019.

  1. Frankenbrewer

    Frankenbrewer Member

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    Just kegged my "end of summer" ipa, the og was 1.053 was looking for 1.019 fg. My fg is 1.026. I used London ale 1318 yeast. What do you think happened or didn't happen?
     
  2. Hawkbox

    Hawkbox Well-Known Member

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    Hard to say really, may have mashed to high, yeast may not have had enough health, it might not be done.
     
  3. Grey Cat Brewing

    Grey Cat Brewing New Member

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    I've gotten 80-81% attenuation with London 1318, and it's "expected" attenuation (according to Wyeast) is around 73%, but the last two times I've used a full 2L starter. I was worried about overpitching, but every single time i have ended up within a point of my FG. 1318 is not finicky like some Belgian strains, but it can benefit from oxygenation and a starter, a single pack just won't work with an OG over 1.050 in my experience.

    Same NEIPA recipe each year:
    In 2017 got about 75% with a single pitch, 1.060 OG, no oxygenation.
    In 2018 got about 77-78% with a 2L starter, 1.061 OG, no oxygenation.
    In 2019 got about 80-81% with a 2L starter, 1.060 OG, and 60 second oxygenation.

    Hope that helps!

    GCB
     
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  4. HighVoltageMan!

    HighVoltageMan! Well-Known Member

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    I think you have a yeast problem, it’s not likely a mashing problem would cause that low of attenuation.
     
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  5. ACBEV

    ACBEV Active Member

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    I reckon you under pitched... My rule of thumb with London ale is two packs or a starter if over 1.050... If the pack was very fresh, one pack might be enough.
     
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  6. Mase

    Mase Well-Known Member

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    If you use the Yeast Pitch calculator on this site, you can calculate how much you need and how much you have. Great tool!
     
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  7. Yooper

    Yooper Administrator
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    Just checking to ensure you used a hydrometer, and not a refractometer to take the reading?
     
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